Tag Archives: 3800

GM 3800 V6 engine auto repair questions and answers from professional mechanics. We offer free help, advice, forums and live chat.


3800 V6 Engine Sensor Locations

GM 3800 (3.8L) V6 engine sensor location pictures and descriptions. EGR Valve Throttle Body Mass Airflow Sensor (MAF) Idle Air Control Motor (IAC) Coolant temperature sensor Fuel Pressure Regulator Throttle Position Sensor (TPS) EVAP System Purge Valve Solenoid PCV Valve / MAP Sensor


2008 Chevy Impala Gauges Problem- How To Replace 3800 Valve Cover Gasket

2008 Chevy Impala. Today I got in my impala …started to drive …looked at the dashboard and all the gauges were going up and down …gas hand ..temp hand …mile hand and the other hand with the single numbers on it ….what is wrong with this picture??? Usually this is the symptom of an electronic…

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2002 Pontiac Grand Prix Transmission Or Catalytic Converter

I have a 2002 Pontiac Grand Prix. Over the last few weeks i have had trouble with the can being jerky while accelerating also i tends to do this more the warmer the car gets ie: runs good in the am but by lunch time it’s acting up. Also i noticed this morning that the…

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1996 Buick Riviera 3.8L Hesitation and Engine Light

I have a 1996 Buick Riviera Supercharged/3.8L V6. Engine hesitates around 1800 RPM’S & then accelerates fine. I have replaced the following: Fuel Pressure Regulator, air filter, air intake sensor, PCV valve, spark plugs and wires, MAP sensor, idle control sensor,  Mass airflow sensor and the purge control valve. I have a Check engine light…

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2003 Buick Lesabre Misfire and Engine Light

I have a 2003 Buick Lesabre 3.8L, I am getting a code P0300 and P0302 code from Autozone. I have changed out the spark plugs and wires and the 3 coil packs. The car is running a little rough but not dying. It is still getting the same codes? Someone suggested checking the #2 injector, so…

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1993 Buick Lesabre Stalls Then Starts Right Up

I have a 1993 Buick Lesabre 3800 engine. It starts and runs great. But after driving 25 to 30 miles it will die, I put it in neutral and it starts right back up and goes an while longer before it dies again. sometimes it will die several times in a row in a mile…

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Cost To Replace Buick 3800 Crank Position Sensor

Hello? I have 2001 Buick LeSabre. I want to replace the crankshaft position sensor. Do you know how much does it cost in terms of labor? ProTech: Which engine do you have in your Buick? V6 3800. It seems it has two CKP sensors, 7x and 24x. I am guessing the 24x is bad. There…

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Oldsmobile PCV Full Of Oil After Intake Gaskets Replaced

Is a wet and oily PCV valve & housing internally a normal condition on the 3800 V6 or is there something wrong? I just replaced intake manifold gaskets along w/ new upper intake plenum (includes new PCV valve + housing), on 1997 Oldsmobile Regency 3.8, due to gasket failure & coolant in cylinders / crankcase.…

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Buick Stalls – Changed IAC and MAF Sensors

1998 3800 stalls when you let up on the accelerator. I changed the IAC valve, still does it.Do I need to drive it for a while for the computer to reset.If not, maybe the MAF??? ProTech: Is the check engine light on? Check engine light has come on a few times in the past week…

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2001 Pontiac Grand Prix Service Engine Light P1404

The service engine soon light came on and when the diagnostic code registered a P1404 number. What is that? I had the converter changed several months ago because it was plugged. ProTech: What year and model vehicle do you have? 2001 Pontiac Gran Prix GT with 3.8L V-6. The EGR valve? Ok, that code is…

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Location of Coolant Bypass on Chevrolet Impala 3800

Were is the bypass hose on a 3800 V6. ProTech: Are you referring to the coolant bypass hose? Yes The 3800 does not really have a bypass hose. It is a small plastic 90 degree elbow. It is located in the upper intake manifold on the front of the engine. I was thinking that because…

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2006 Pontiac Grand Prix Seconday Air Injection Code

My 2006 Pontiac Grand Prix’s check engine light came on and the mechanic replaced the air pump. The light came back on and now they are replacing a secondary valve tomorrow and they can’t guarantee that’s the problem. I’m already at $600 worth of repairs and it probably won’t take care of it. I have…

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